Deep well pump



l July 21, 1936. R. N. vlcKERs DEEP WELL PUMP Filed NOV. 6, 1934 Patented July 2l, 1936 UNITED STATES PATENT OFFICE -DEEP WELL vPUMP `vRichard N. Vickers, Smackover, Ark. Application November-'6, 1934, Serial No. 751,751

' 1 Claim.

This invention relates to an improved deep well pump and more particularly to improvements in the pump shown in Patent No. 1,864,914, granted to F. C. Kniss and myself June 28, 1932.

The present invention seeks, among other objects, to effectively pack 01T the hydrostatic pressure of the fluid in the tubingfrom the. standing valve whilefeliminating the use of close-litting telescopic parts.

A further object of the invention in this. connection is to provide a soft or ductile bushingfor packing oi the hydrostatic pressure of the uid in the tubing, wherein the weight of the rods, when the valve assemblyis lowered into position, will serve to press the bushingV into engagement with its seat to forma sealed joint therewith, and wherein the bushing will thenserve to frictionally hold the valve assembly stationary when the pump is in operation.

A further object of the invention is `toprovide apump wherein the .discharge valve will be Vclosely confined to travel in a. 4path axially of the valve seat so that lateral oating ofthe'valve and consequent escape of iuid before the valve closes or rapid cutting ofthe seat will be obviatedl And thev invention seeks asa -still further ,object to. provide a pump wherein the Valve. assembly and plunger may be readily installed or removed as a unit without likelihood of the, parts becom-A ing disconnected. y

"Other and incidental objectsrof theinvention will appear as the-,description proceeds'and. in the drawing forming part of this application.

Figure 1 is a vertical sectional View of myimproved pump.

Figure 2 is an enlarged fragmentary section particularly showing the bypass tube ,of thefvalv'e assembly, and y i i Figure 3 is a transverse sectional'view on 'the line 3-3 of FigurerZ showing the centering ribs onthe wall of the discharge valve chamber of the lbypass tube. Referring nowmore particularly tothe drawing,'I'have shown a weil tubing or casingat I 0 and in carrying the invention into' effect, I employ a tubular jacket II which is screwed at its upper end onto the lower end of the casing. Screwed into the lower end of the jacket is a nipple I2 and this nipple is externally threaded at its lower extremity to receive a suitable strainer, not shown. Near its upper end, the jacket II is thickened internally to provide a seat I3 stepped to form an annular shoulder I4 and this shoulder may be either iiat or bevelled as may be preferred. In the present instance I have shown a at shoulder.

Disposed within the jacket I I is a bypass tube I 5 provided at its upper end with a collar I6 and tightly tting about the tube to abut said collar is a b ushing I 'I of soft metal such as lead or babbitt. The bushing I 1 is preferably bonded to the 5 tube and below said bushing the tube is reduced slightly in external diameter to slide through the seat I3 ofthe jacket I I at the shoulder I4. As will be observed, the collar I6 and bushing I1 fit the seat I3 while the bushing rests flat at its lower 10 edge upon the shoulder I4 for sustainingthe by-` pass tube l I5 in position axially of the jacket to define an annular chamber I8 between thetube and jacket, the combined height of the bushing I'I andthe collar I6 having a substantial fric-A 15 tional contact with the inner vertical wall of the seat I3 as to preclude lateral displacement of the bypass tube with relation to the jacket.

Near its lower end, the tube l5 is provided with an internal annularstop ange I9 above which 20 is a discharge valve chamber 20 and formed on the wall of said chamber to lie parallel to the axis of the tube is an annular series of spaced centering ribs 2|. Lying between theribs 2I, as particularly seen in Figure 3, is a series of grooves 22 which extend longitudinally of the valve chamber 20.

vExtending diametrically of the tube I5 at the upper end of the chamber 20 is a duct 23 providing -a transverse passage 24 opening through the 30 Wall of the tube at opposite sides thereof and rising from said duct is a tubular stem 25 providing a cylindrical chamber 26 communicating with the passage 24. The stem 25 is disposed axially of the tube I5 and Aat the upper end of Asaid tube is thickened externally to provide a head 21 carryinga stud 28. Extending at opposite sides of the duct 23, as particularly seen in Figure l are passages 29l establishing communication betweenV the valve chamber 20 and the upper end portion of the tube I5.

Abutting the stop flange I9 is a valve seat30 and normally resting on said seat is a ball-discharge valve 3| centered within the chamber 2l) bythe ribs 2|. Only slight clearance is provided between the ball and ribs so that the ball will be confined to travel substantially in a straight path axially of the valve seat. Lateral iloating of the valve and consequent escape of fluid before the valve closes or rapid cutting of the seat is thus obviated while, however, liquid is permitted to freely ilow through the valve chamber 20 within the grooves 22. o

Screwed into the lower end of the bypass tube I5 is a standing valve cage 32 in which is xed a seat 33 and conned within the cage is a ball standing valve 34 limited in its upward movement by a spider 35. Screwed into the lower end of the cage 32 is a cup tube 36 and mounted on said vtube are suitable cups 3l which more or less tightly t the nipple I2. Thus, as will be seen, these cups pack Voff the well pressure from the chamber I8 externally of the tube 36. f

Screwed onto the `stud' 28 of the stem of the by-pass tube I5 is a standingtube 38 thickened internally near its lower end to provide atapered Vseat 39 having a left-hand thread. Reciprccable in said tube is a plunger 4B provided at its lower@ end with a tapered stud 4I adapted to bescrewed into the seat 39 and screwed onto the upper-end of said plunger is a head 42 toV whichthe usual pump rods are attached. Screwed onto the lower end of the head 42 is a skirt crtravelin'g'tube 43- which telescopically fits snugly over the standing e tube 38. A chamber l44 is thus dened above the lifDDBr end 'of the standing tube vwithin the upper endportion'of the traveling tube.

` At its upper end,`the plunger l provide a passage 45V from which lead ports 46 ycommunicating withV the' chamber 44 and formed in the head 42 tov communicate with the passage 45 is an axially aligned passage 4l. Lead" ing from the upper end ofthe passage 4'! Ato the .exterior-of the head are ports 48 and confined 30' between the head and the upper end of the plunger 40 is a'valvefseat 49 withwhich is arranged to coact afball check valve 58. Thus, when the plunger 40 and Y traveling tube 43 move down- Wardly,`uid in the chamber 44' will be permitted to escape through the ports' 46, vpassage 45, passage- 41 and ports 48. On the'upstroke ofthe plunger, however, the valve 5l] will close so thatthe fluid in the chamber 4'4 will beretained therein Yto providea seal between` thetraveling tube 43 and the's'tanding'tube 38. fj

`Attention is now'di'rected to the fact that the Ystud 4I V`of the plunger 40 may be rscrewed'irito the fsocket 39V of the'standingtube'38, when the entire valve A,assembly may-be lowered'int'o the well as'a unit andthe bushing `I 'I/sefated upcnthe ,shoulder I4 of the seat I 3.` As-the bushing His thus initially seated, the weight of the rods will serve to press the bushing downwardly into en-` gagement with the `seat and as saidbushingis of soft metal, asy previously noted. the'bushing willY be mutilated to itightly conformlto the sur-- theseat 39, thus freeing the plungert The plung-r er is` thenelevated, as' shownin Figure .lrwhenau is 'bored to the pump is ready to lfunction. Should it prove.

desirable or necessaryVhowever, to remove the valve assembly at anytime, the stud 4I is again screwed Vinto the socket 39 when the entire valve assembly may, aswill now be appreciated, be withdrawn as a unit. Y

Upon the upstroke of the plunger 49, fluid is drawn upwardly through the tube 36 andV cage 32 into the chamber I8 and thencethrough theV passage `24 of theibypass tube I5 and'into the chamber 26`and Vstanding Atube 38.` Upon the downward stroke of the plunger 49, the standing; valve 34 closes, when the fluid is forced from `thestanding tubeV 38 and chamber 26y backV throughthe passage 24 into the chamber I8 and -qth'en'ce back through the cage 32 and upwardly Vthrough the valve chamber 2D and passages 29 of "the bypass tube I5 to' enter the lower end of theY well, tubing through said tube. As the plunger 4:8 next starts upwardly, the discharge valverSI will, of course, close while the Ystanding valve 34 will be Qpened andthe cycle repeated. Iacrcordingly provide` aparticularly effective pump for Y.

deep well usefand wherein the standing valve is relieved of wellpressure such as might tend to 2 hold the valve closed and'isv'alsfo relieved of hydrostaticpressure in the well tubing so that the standingvalve may freely function Iat all times.

YHaving thus described the invention, "I claim:-V

' A deep well'purnp including a jacket adapted for attachment to a welltubing and provided withV an internal reduced portion adjacent the upper end thereof, a jutting ,rightl angle kshoulder ar-V ranged vatY the baserof said reduced portioll. a by- Y* pass tube supportedrwithin the'jacketbymsaid jutting shoulder to denne a chamber between the tube and jacket and provided with a discharge valve'chamber, said tube being provided with a cellen, a soft :metallic bushing Abonded to the tube toA abutr said" collar and resting atits 'lower edge against said shoulder, the outer faces of said' collarlpandtbushinggbeing of sufficient height to have a substantial' frictional contact with the innerifacefof thefreduced'portionof the jacket to preclude lateral; displacement j ofthe bypass tube with rrelation to thevj'acket, said bushing being constantly urged'by 'the weight'of the liquid in the vv-Q11 rubingxagainsr the 'shoulder to; te distortedly expanded by said shoulder'into tight intimate engagementr with 4said jutting `shoulder forming Laseall between the seat ,andV tube,V a standing tubeA connected 'with ',said bypassV tube, a plunger reciprocable in saidstanding tube,the

bypasstube being provided with apassageV establishing communication `:between the standingftube and saidfnrstlmentionedvchamber as,V

well Vwitha passage establishingl communication between Ysaid `discharge ,valveV chamber and the well 4tubing,,adisch'arge valve in said dischargevalvefchamber, a standing valve cagecon- Y nect'ed with said bypass tube and communicating with said first; mentioned chamber as. welljas' with said iiis'ciitm;`

ing :valve in 'saidf age... ,Y V

" RrCrI'ARn uvrekEfRs.

,valve chamber, and a stand-.- 

